DM: That so-called letter was barely distributed to anyone other than four sanitation workers. It was produced by Zionists who “miraculously” discovered the(ir own) letter was a forgery (by themselves.)
The bottom line is various gedolei yisroel shlita from the yeshivish, litvish and chasidish rabbonim not only endorsed it but will personally attend it. Some of them are bringing their talmidei hayeshiva with them, in an indication of how strongly they see it’s importance, while other roshei yeshiva chose to have their regular limudei Torah shiurim, as they hold that’s what will stop the reshoyim in the Israeli government. Nevertheless, whichever mehalach each of them chose not a single godol hador is on the record as not supporting the Asifa. All who have spoken of it publicly support it whether or not they are sending their yungerleit to attend or to learn.